Selector.



C S, RHOADS, In. SELECTOR.

7 APPLICATION FILED FEB. 18 I9l6. 1,244,544. Patented 001;. 30,1917.

2 SHEETS-SHED I.

c. s, RHOADS, 1R.

SELECTOR.-

APPLICATION FILED FEB. 18. iBIG.

Patented Oct. 30,1917

2 SHEET$SHEET 2 Application fi1ed 1ebruary 18, 1916. Serial no. 78,038.

viii comer-7w that I',' GrIAaLE's S. Rnoa'ns, the United States, residing in the county of Tippeflndiana, have invented in useful Improvement in of vvh the'following is a full,

' se ithdexact' description, refer- "the accompanying draw-v tiof this specification. I re t es to selective signal- ,inglsy emsa ndi concerned more particularly, wfitlrtlhe production of a selecting deice ofi se'iin systems of this or similar charan urem a is tater;

M Qnetof 1th :pfimefeatures of this invenis thev pro'd ti'onlof an alternating cur- J rent selector hy fwhich s meant one that may operate w i tii positive and: negative impulses, I f

or reversals ofcuri'ent, which selector is of 'uch'acharacter that it is responsive to a f code call,'rather ban to. a call depending "solely upon the number (if impulses oralternations of current. The constructional fea- 2 i't'ui'es'of theis 'elector however are such that sligh miidification, for instance, it is v java'ilablejas a direct current selector, also of thej'scode typ f'desi'red. M

This i"vent1on will be best understood by one form of device-constructed in a dance with it, which will if new belde" connectionwith the accompgill dr1ay'v1iijgs, in which is at ont view oft-a selector in a I position construct edin this invention;

efi'vie'w' thereof;

' a1 view on line a-a of Sh W11 in 'iuustm. I E ng the, teeth;

is sent over the line wires, and if the switch character is sent over the wires.

'19,. which inwardly pro ecting pole piecesc nt r) e ile l1 ctr tion of the view frameworkl l also hasanother upwardly Lexnt yi? of a portion" tending-arm 24which together..with,;the ;arm us rated in Fig. 1"sli0w 's associated with' the rying the star or'step-u'p wheel 26, which in, this case serves as the, step-byestep 'el'ennmt. w or Big. 1' The armatureQO is mounted-upon aswing as citation with slightly modified to illustrate its use as direct current selector.

' This improved selector may consist preferably of a base late 1' upon which a permanent magnet 2 1s mounted, this permanent magnet serving to support the entire structure, preferably because of its attachment to the heel piece 3; The heel piece serves an electromagnet having two coils 4, 5, which are used to operate the movable mechanism 66 of the selector. As shown the electromagnet coils 4 and 5 are remotely controlled by the diagrammatic representation of line wires 6 and 7, which line wires extend preferably to a central station at which a battery *divided into sections 8 and 9is located, these sections being under the control of operat ing switches 10 and 11. It'will be seen that if the switch 10 is operated a certain impulse 11" is operated-an impulse of the reverse In Figs. 1

to 9 inclusive the switches 10 and 11 are designed to be operated 'i'a lternately.

The mechanism by which the switches 10 and 11 can be operated automatically and in," such a way as to count the number of in; pulses has not been shown, since that forms 'nopart of this invention and as such Ycall' boxes are parts of the prior art.

-The magnet coils 4 and 5 have protrudingpole pieces 12 and '13 upon. whlch is supported a framework 14. This framework at its rear has a downwardly extending bracket 15 and at its forward extremity hasadownwardly extending bracket '16, these brackets 15 and 16 serving as supports for an armature 17 of the-device." The magnet coils also have inwardly projecting pole pieces 18 and cooperate with an armature 20. This arma- -ture-20 is pivoted uponv brackets 21. which form rearwardly extending projections, of

the vertical arm 22. This vertical arm 22 is part of the framework 14 extending w-ardly -vfrom the shelfi 23 thereof. fl: e

22 serves as'asupport for the shaft caring rod 27,'which as hefore is pivoted upon' the arms 21, and this. atitaupper and" carries' a" counterweight :28 so thattha 110 normal position of this armature and arm is as shown in Fig. 2. The rod 27 further carries a finger 29 adapted to control the position of a pawl 30. This pawl is pivotally mounted u on the arm 22 at its upper extremity. ormally when the parts are in their neutral position as shown in Figs. 1

and 2, the finger 29 rests u on the tail iece of the pawl 30, thus holdm it out 0 engagement with the star whee 26'. The rod 27 also carries a further finger 31 which is insulated from the said'rod 27. The star wheel 26 may be provided with one or more projecting stop arms 32 and 33, preferably nsulated from said star. wheel, as shown.

The local circuit may then be completed, for instance, to the local signal 34, which with its battery 35 is included in a local circuit with the conductors 36 and 37 respec tively connected to the fingers 31 and 33. A spring 38 normally tends to hold the star wheel in the position shown whereby the stop 39 provided upon the star wheel 'rests against the arm 24.

Nowwhenever the magnet coils 4 and 5 are energized, either' with alternating cur- "Tent, positive or-iiegative impulses, or direct current, the armature 20 is attracted to its position between the pole pieces 18 and 19 and stays there, the armature 17 however being polarized through the agency of the permanent magnet '2 oscillates in ac-' cordance with the polarity of the magnet coils 4 and 5. v

Thus in'the' general operation of the dev ice the first impulse, say of any given polarity, causes the armature 17 to; occupy a position where it engages, say, the ole p ece 12 at the same'time that thearmature 20 is attracted to its alternative position. An impulsefofjthe-reverse polarity will then reversetheiposition ofthe armature 17, but

bol-ireadilytwog-arms 32, and 133 arenecessary three digits-three could. be used, or other will retainthe armature 20 in the same positioli it just occupied.

The. structure shown in 1 to 8 is designed ifor. code. ringing, although-of course it may for straight impulses as Wlll a parentirom the succeed ng description. upposinghowever that the device" isjYused' for; code-"fingmg purposes, the

to consistonlyof two digits, theii7V combinationsefiected. If but two digits are used, however, as shown in the figures,

that it takes six actuations of the starwheel '26 to. bring the arm 32..directly beneath the .31-- Iftheu alternationsare 'se'ng tll ie carryil l gah 'escapemen n w seeres of energization signal 34.

let it-be a'ssumed that the code. signal of the devicej-i's; 6+4, thisb'eing' meant to sign fy It must be remembered of course-that the first impulse also caused an attractioniof. the armature 20, thus releasing the finger 29 from engagement with the pawl 30 and causing this pawl to enter the teetlrof the star wheel 26. If after the sixactuations a; cessation of impulses occurs, then the armature 20 is released and it tilt's' back into the position of Fig. 2, whereuponfthe finger lectors and permit the s rings 38 to return the star wheels therea ter to the neutral position. Then if the next number of the code is fonr,-.,the sending of four additional alternations after the interval will again cause attraction of the armature 20 of those device'spreferably held in position and will cause-a step-by-step movement of the element: 26 through four more steps to bring the arm 33 directly under the finger 31'. A

' further cessation ofimpulses will cause the rod 27 of Fig. 2 to return clockwise or untilthe finger 31 engages the stop arm 33, thereupon closing the circuit through the local It must be understood of course that other instruments having the code 62, or 6*6, or whatever the case may be would not have their circuit closed as their second stop arms would not be under. the finger 31. Thus in the case of these selectors which previously had been heldin an actuated position, their star wheels 26 would also be returned to normal because the rod 27 would be per-- mitted to make its complete return to normal to release the corresponding pawls 30. It will be seen that due to the-peculiar goose neck construction of the fingers 32 and 33 that the star wheels carryin them may be returned to normal even t ough these star wheels have carried said stop arms .beyond the finger 31 because if the said stop the corresponding rods 27 are restored en- 'tirel to normal so that the extremity of the fin below'the goose neck portion 80 that there.

.arms are carried beyond the finger 31, then izo iS-nointerference between the returning stop oose necks pass arms' "as their projecting gers- 31.

back to normal over the .Fromthis itis thought the operation of Q the. code selector will be. entirely clear. Itfi may be out that one impulse may be used. fora resto will be seen that the escapement and the starwheel26 have been replaced by a ratchet I wheel 42 and a step up pawl 40, the armature 17 being held in a biasing position by a spring 41. Under these conditions it will be seen that the device is capable of operation as a code selector for direct current systems, although of course alternating impulses could be used even with this style of selector, the spring 41 however rendering one set of impulses innocuous.

From what has been described the nature.

of this invention will be readily clear to those skilled inthe art.

What is claimed is- 1. 1M code device of the character de-, scribed comprising a step-by-step' element,

actuating pawls therefor, electromagnetic means including two armatures responsive to impulses of, opposite polarity to actuate thepawls to advance said element, means controlled by said element and electromag netic" means and rendered operatively responsive thereby when said element is advanced into a predetermined position, and means controlled by said element and electromagnetic means to retain said element momentarily in a predetermined intermedi-v ate osition when said element has been advanced into said intermediate position.

2. A code device of the character described comprising a step-by-step element, actuating pawls therefor, electromagnetic means including two armatures responsive to impulses to actuate the pawls to ad- Vance said element, means controlled by said element and electromagnetic means and renders operatively responsive thereby when said element is advanced into. a redetermined position, and means contro led by said element and electromagnetic means to retain said element momentarily in a predetermined intermediate position when said element has been advanced into said inter mediate position.

3. A code device of the character described comprising a step-by-step element, actuating pawls therefor, electromagnetic means including two armatures responsive to impulses of opposite polarity to actuate the pawls to advance said element, means controlled by said element and one of said armatures and. rendered operativel responsive thereby when said element 1s advanced into a predetermined positlon, and

' means controlled by said element andsaid armature to retain said element momentarily in, a predetermined intermediate position when said element has been advanced into said intermediate position.

4. A code device of, th e character der, scribed comprising actuating pawls' therefor; e1 t f'iliiiiig' fletlc means including two at fdesp'dhsiiid to impulses to actuate the pa IstGadv said element, means cont 01 1 ment and one of said'*"a ,rje dered operatively responsive said element is advance mined position, and'ni said element and said said element momenta 1y mined intermediate pos ment has been advai mediate position.

5. A code device o scribed comprising a s actuating pawlsthereto means including two arr 1 i to impulses of opposite' pola t It the pawls to advance elein'fe controlled by said elemei armatures and renders sponsive thereby when is vanced into a predeterrmn means including a finger and cotiperating element step element, and mean element and said arma't element momentarily intermediate position been advanced into S341, tion,

6. A code device ofjf'j scribed comprising a ste electromagneticmeans' includ g a-" tures responsive to impulses to actuate said element, means controlled by said element and one of said armatures and rendered operatively responsive thereby ,when said element is actuated into a predetermined. position, said means including a finger on said armature and a cooperating element on said step-by step element, and means including the finger controlled by said element and said armature to retain said element mo mentarily in a predetermined intermediate position when said element has been actuated into said intermediate position.

7. A code device of the character described comprising a step-by-step element, electromagnetic means including two armatures responsive to impulses of opposite po larity to actuate said element, means controlled by said element and .one of said armatures and rendered operatively responsive thereby when said, element is actuated into a predetermined position, said means including a finger on said armature and a cooperating element on said step-b -step element, and means including the nger controlled by saidelement and said armature to retain said element momentarily in a predetermined intermediate position when said elementhas been actuated into' said intermediate position, said fcpoglelrating elements when alined, with said er cooperating therewith 'to hold said step-y-step element position, said finger-being out oft the norpath of said cofiperating elements when it's associated armature is in either of its extreme positions.

8. A code device" of the character .de'-

scribed comprising a step-b -step element,

electromagnetic means inclu m two arma \turesresponsive to impulses to actuate said element, means controlled by said element.-

ated into said intermediate position, said cooperating e lements when alined with said finger coiiperating therewith to hold said step-by-step element in position, said fin- -ger being out of the normal path of said cooperating elements when its associated ar- .mature is in either of its extreme positions} 1 9.- A substation signal receiving device having a step-by-step -element, actuating p'awls therefor; electromagnetic means including' two'armatures responsive to impulses to actuate the pawls to advance the element, a finger mounted upon one of the element has been a "tel-mediate Y 10. A su station signal receiving devicehaving a stepby-step ,element,- actuatingarmatures,. an ari'n mounted upon the stepby-s'te'p' element, a signal controlling device rendered operativeiiy responsive w vanced into a mined position with the finger an the arm en the redeter- 40 in engagement, and a second arm mounted upon the step-by-step elementandcoiiperat- 'ing with the finger whenthc-element has.

been advanced to a, predetermined intermediateposition to hold the element in this inosition. '1;

pawls therefor, electromagnetic means 'in- '.cluding two arinaturesresponsive to impulses of op osite polarity to actuate the" 'pawls to a vance the element, a finger mounted uponone of the armatures, an arm mounted uponothe step-by-step element, a signal controlling device rerderedv opera tively responsive when the element has been -advance'd into a predetermined position with 'the finger and the arm inengagement, and a 'second arm mounted upon the. step by-step element and cooperating with the finger when the element has been advanced to a predetermined intermediate (position to hold the-element in this interme ate position.

In witness whereof, hereunto subscribe my name this 31st dayof January, A. D.,

- CHARLES S. RHOADS, JR. Witnessesz' Marcos JACKSON,

L. M. Buscme. 

